Radiator.



J. H. MORROW. RADIATOR. APPLIOATIQN FILED MAM, 1909.

L44,561 Patented Nov. 19, 1912.

2 SHEETSSHEBT 1.

J. H. MORROW.

RADIATOR. APVPLIUATION FILED MAY 4, 1909.

Patented Nov. 1.9.1912.

2 SHEETS-SHEET 2.

"UNITE D STATES PATENT OFFICE.

JOHN H. MORROW, F CHICAGO, ILLINOIS.

nnia'ron.

Specification of Letters Patent.

Patented Nov. 19, 1912.

Application led May 4, 1909. Serial No. 493,779.

' the` following is a specification.

My invention relates in general to steam heating systems, and more particularly to a radiator attachment for increasing the eiiiciency of such systems.

In steam heating systems in which a single communication with the radiator serves for the supply of steam thereto and the discharge of water of condensation therefrom 'the steam passes from the supply pipe to the radiatorand through the unions between the radiator loops, and upwardly into the several loops in a direction opposite to the discharge of the water of condensa'-l tion downwardly within the loops and through the loop unions to the pipe. This ow of steamv and water in opposite directions impedes both the supply of steam to the radiator and the discharge of water from the radiator, thereby detracting from the heating eiiciency of the radiator.

The prlmary object of my invention is to provide an improved attachment for radiators of steam heating systems, which will permit the steam and water'to ow in opposite directions to and from the'radiators without impeding or obstructing the flow of each other.

A further object of my invention is to provide an attachment which may be readily applied to the usual radiators of ordinary heating systems, and which will improve the heating efficiency thereof and remove the objections heretofore experienced in the operation of such systems.

M. invention will be more fully described hereinafter with reference to the accompanying drawings, in which the same is illustrated as embodied in several convenient and practical forms, and in whichv Figure 1 illustrates the upper half lof a radiator in elevation and its lower half in vertical section, to which one lform of my improvement has been applied; Fig. 2, a

cross sectional view online 2, Fig. 1; Fig.

3, an enlargeddetail view of a modification; and Fig. 4:, an enlarged detail view of still another specific embodiment of my invention.

Reference letter A indicates a radiator formed of a plurality of loops, the adjacent loops being placed in communication by any suitable unions, as, for instance, exteriorly screw threaded thimbles a which engage within interiorly screw threaded flanges on the adjacent loops.

B indicates the steam pipe, or a branchv thereof, of the steam heating system, while b indicates any usual form of valve for controlling the passageway between the radiator and the pipe B.

C indicates a coupling nipple, one end of which couples with' the body of the valve b.

D indicates an air vent valve.

The above described parts do not in themselves constitute the novelty 'of my invention, but are such as are commonly comprised in an ordinary steam heating sys.v

tem. They are illustrated and described in order that my improvement may be fully disclosed, and it will,of course, be understood that my improvement is not limited in its application' to a heating system comprising the parts above described, but is applicable to steam heating systems comprlsing parts differing speciiically from those above described.

Reference letter E indicates a coupling interposed between and uniting the nipple C with the adjacent radiator loop. In the 'ordinary construction of lsingle pipe heating systems, the end of ,the nipple C' engages directly within the interiorly screwy vthreaded flange ofthe adjacent radiator loop. The coupling E is provided with an interiorly screw threaded circular collar c, of a diameter to surround and engage the end of the nipple C, and also with an Vexteriorly screw threaded portionV f of a di' ameter to engage within the interiorly screw threaded opening in the adjacent-loop of the'radiator. y

The portion of the 'coupling E which projects within4 the radiator is provided with a circular fiange (l through which extends aconduit G. This conduit projects through the unions c interposed between the several radiator loops and terminates at a point within-the radiator loop most remote from the pipe-line. The conduit G extends through the coupling E and is supported in alinement with the nipple C by means of a circular seat formed in the adjacent wall of the coupling E.

The portion of the coupling E which projects within the radiator is provided with a hole la, through the bottom thereof, while the chamber within the coupling E surrounding `the portion of the conduit G therein is provided with interiorly screw threaded alined openings s and 7&2. One of such openings is adapted to communicate with a return pipe-line K, by means of any suitable interposed union, as, for instance, an elbow K2. The other one of the alined holes la and lf2 is closed by a plug K. By providing. two oppositely alined holes, the return pipe may be located on either side of the coupling E, which is most convenient.

The operation of the embodiment of .my invention illustrated in Figs. 1 and 2, and above described, is as follows: The valve b being open, the steam passes through the nipple C and coupling E to the conduit G,

Y through the loops until the loop adjacent the pipe-line is relached, from which the air is expelled through any suitable vent valve, such as indicated;l at D. The water of condensation runs downwardly within the several radiator loofps and accumulates below the `conduit G, until it reaches a level above the hole h, after JIwhich it flows through such.

hole into the chamber in the coupling E surrounding the portion of the conduit G therein. The water ol condensation passes from the chamber in the coupling E to the return pipe K, such return pipe-line being preferably connectedt with suitable exhausting mechanism comnionly employed in double pipe-line steam heating systems.v

In 3, I have illustrated another specie embodimentof my invention, differing from that illustrated in Figs. l1 and 2 only in that a hole for the discharge of air from the radiator is provided in the top wall of the portion of the coupling which extends into the radiator, thereby obviating the need of an air vent valve such as indicatedl at D in Fig. 1. E indicates the coupling in Fig. 3, which is illustrated as identically the same in construction as the coupling E shown-in Figs. 1 and2, except that the hole z' is provided through the top wall of the portion of the coupling within the adjacent radiator loop. The parts which coperate with the coupling in the form shown in Fig. 3 are the same as theparts which cooperate with the coupling Ein Figs. 1 and 2, and hence further description of such parts in connection with 3 is unnecessary.

Y The operation of the modified form of my invention showing in Fig. 3 is the same as above described in connection with Figs. 1 and 2, except that the air after being driven ahead of the steam through the successive radiator loops commencing with the loop farthest from the pipe-line passes through the hole z' to the chamber within the coupling E', and thence passes through the return pipe-line K.

It will be evident fromthe above description that my invention when embodied in structures such as illustrated in Figs. 1, 2 and 3, in. addition to the other advantages hereinbefore pointed out, possesses the additional advantage that a radiator may be connected with a double pipe system, by means of the usual opening extending through the end loop of the radiator, thereby obviating the necessity of separate connections with the radiator for the steam supply and return pipe-lines.

In Fig. et, I have illustrated a construction by means of which my invention in its broader aspect may be applied to a single pipe steam heating system. In this gure of the drawing E2 indicates the coupling which is interposed between and unites the nipple C2 with the adjacent loop of the radiator A. The coupling E2 is differential as to its diameter, and is provided with an interiorly screw threaded circular flange e2 of a diameter to surround and ,engage the end of the nipple C2, and also with an exteriorly screw threaded portion f2 of a diameter to engage within the interiorly screw threaded opening in the outer wall of the adjacent radiator loop. The portion of the coupling E2 which extends within the adjacent radiator loop is provided with an end circular ange g2 within which extends and is supported the end of the conduit G2. The conduit-l G2 is located with respect to the radiator loops the same as lthe conduit G shown in Fig. v1. A hole h2 extends through the bottom wall'of the portion of the coupling E2 within the radiatorloop.

The operation of the form of my invention illustrated in Fig. 4 is as follows: The steam passes through the nipple C2 and coupling E2 to the end of the conduit G2, and

after passing therethrough is discharged from the open end thereof within the radiator loop farthest from the pipe line. The steam passes successively upwardly and downwardly within the radiator loops, driving the air before it, until the loop is reached adjacent the pipe-line, from which the air is expelled through a suitable air vent valve,

, 50 l stances may suggest or whlch conditions such as indicated at D in Fig. 1. Water of condensation runs downwardly within thev several radiator loops 'and accumulates below the conduit G2 until it reaches the level of the hole k2, after which it flows through 'such hole into the enlarged chamber of the coupling'Ez, and thence through the nipple C2 to thepipe-line. The water of condensation seals the hole 7b2 and prevents the passage of steam therethrough, thereby insuring the discharge of steam only through the` remote open end of the conduit G2. The

steam consequently cannot pass directly upwardly into the'several radiato-r loops and thereby impede the downward flow ofthe water of condensation, and also have its own flow impeded by the tlow of water of condensation. The passage of the steam successively through the radiator loops carries with it the air to the vent valve and alo carries the water of condensation with iti the same direction. It will readily be seen that as the interior of the coupling E2, to which the hole vlead's, is much larger than the interior diameter of the conduit G2', the steam will Ypass into the conduit G2 without being impeded, and without impeding the flow of the water of condensation through the hole 71,2 and subsequently through the couplingfE2 and nipple C2. l From the foregoing description, it will be observed that I have invented an improvement in steam heating systems which may be readily applied to steam heating systems of the usualconstruction, and which will insure the expulsion of air from the radiators, and in which the How of steam to the radiators and the discharge of water of condensation from the radiators will take place without either obstructing the other,

although a single coupling with the radiator is provided.

It will, of course, be understood that my improvement is capable of other specific embodiments than those-shown-and described herein, and that I consequently do not wish Yto limitA my invention vto the precise details of construction herein disclosed, but propose to embody the same in any convenient and practical construction which circummay render expedient.

I claim:

l. In a steam heating system, the combination with a steam supply pipe, of a radiator, said radiator comprlsing loops the tops of which do not communicate with each other, a coupling connecting the pipe with the -radiator and having a portion fittingv .within an opening in the radiator and projectin'g into the radiator, said coupling terminatmg Within the radiator 1n an end having an opening therethrough of less diameter than the interior diameter of the coupling, said coupling also having a hole through the bottom part of the portion thereot1 which projects into the radiator through which water of condensation passes from the radiator into said coupling, and an imperforate conduit-supported by said lcoupling above 'the water outlet hole therein.

and extending from the end thereof which terminates within the radiator to and vdischarging at a remote point in the radiator. l 2. In a steam heating system, the combination with a steam supply pipe, of a radiator, said radiator comprising loops the topsv of which do not communicate with each other, a coupling connecting the pipe and radiator having an enlarged portion fitting within an opening in the radiator and a reduced portion extending Within the radiator, said coupling also having therein a chamber intermediate of its ends, an imperforate conduit in communication with said pipe extending through the chamber in said coupling and projecting to and discharging at a remote point in the radiator, said coupling having a hole therethrough below said conduit through which water of condensation passes from the radiator to the annular space aro nd the portion of said conduit within said chamber, and a return pipe-line communicating with the chamber in said coupling.

3. In a steam heating system, the combination with a steam supply pipe, of a radif radiator, saidcoupling also'having therein a chamber intermediate of its ends, an in1. perforate conduit in communication with said pipe extending through the chamber in said coupling and projecting to and discharging at a remote point in the radiator,

said coupling having a holel therethrough below said conduit communicating with the radiator through which water of condensation passes from the radiator to the space around said conduit Within said chamber, said Avcoupling also having a hole therethrough above said conduit communicating with the radiator through which air passes from the radiator to said chamber, and a return pipe-line communicating with the chamber in said coupling.

4. In a steam heating system, the combination with a steam supply pipe, of a radiator comprising loops the tops of which do not communicate with each other, a coupling connecting said pipe and radiator comprising an enlarged portion fitting within an opening in the radiator and a reduced portion projecting within the radiator, an imperforate conduit communicating with the pipe and extending through said coupling in the radiator to and terminating and discharging I n testimony whereof, .I have subscribed at a remote point therein, said coupling havmy name.

lng an openlng below said. conduit through Which the space therein around said conduit JOHN H' MORROW' communicates with the radiator, and a re- Witnesses:

turn pipe communicating with the space in GEO. LJWILKINsoN.

said coupling around said conduit. i ANNIE C. COURTENAY. 

